Many problems can occur to damage or destroy teeth. Cavities are the most common culprit. Tooth fractures are another common complication. When decay or cracks damage a tooth, dental treatment is necessary to restore it to normal function.
This is why we call crowns, inlays and onlays “dental restorations”. They restore teeth to normal function.
Specifically, crowns, inlays and onlays are indirect restorations because the process of creating them occurs outside of the mouth. This contrasts a direct restoration, like a composite filling, in which all forming, contouring, and finishing takes place inside the mouth.